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          Firmware API
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<h1>Digital Outputs<br>
<small>
[<a class="el" href="group___app_board.html">AppBoard</a>]</small>
</h1>The Digital Out subsystem sends digital values out the 8 high current outputs - 1 (on) or 0 (off).  
<a href="#_details">More...</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___digital_out.html#ga98b65673615683dbdaa1fc7ee4e4f2f">DigitalOut_SetActive</a> (int index, int state)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Sets whether the specified Digital Out is active.  <a href="#ga98b65673615683dbdaa1fc7ee4e4f2f"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___digital_out.html#g5dd452d33a5e9c45374b9d82206b6d68">DigitalOut_GetActive</a> (int index)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Returns the availability of the Digital Out I/O lines.  <a href="#g5dd452d33a5e9c45374b9d82206b6d68"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___digital_out.html#gcd33bd552fe48b82df9f0be1c4985ccd">DigitalOut_SetValue</a> (int index, int state)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Turn a Digital Out on or off on the MAKE Application Board.  <a href="#gcd33bd552fe48b82df9f0be1c4985ccd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">int&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="group___digital_out.html#ge7a85f9705a725cf3920e52737367886">DigitalOut_GetValue</a> (int index)</td></tr>

<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Read the value of a Digital Out on the Make Application Board.  <a href="#ge7a85f9705a725cf3920e52737367886"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
The Digital Out subsystem sends digital values out the 8 high current outputs - 1 (on) or 0 (off). 
<p>
If you've previously used any of the other systems on the outputs (steppers, motors, etc.), you'll need to set them to <b>inactive</b> to unlock the IO lines and use the Digital Outs. <hr><h2>Function Documentation</h2>
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          <td class="memname">int DigitalOut_GetActive           </td>
          <td>(</td>
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<p>
Returns the availability of the Digital Out I/O lines. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>index</em>&nbsp;</td><td>An integer specifying which Digital Out (0-7). </td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>State - on (1) or off (0). </dd></dl>

<p>Definition at line <a class="el" href="digitalout_8c-source.html#l00119">119</a> of file <a class="el" href="digitalout_8c-source.html">digitalout.c</a>.</p>

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<p>
Read the value of a Digital Out on the Make Application Board. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>index</em>&nbsp;</td><td>An integer specifying which Digital Out (0-7). </td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>The value - on (1) or off (0). </dd></dl>

<p>Definition at line <a class="el" href="digitalout_8c-source.html#l00158">158</a> of file <a class="el" href="digitalout_8c-source.html">digitalout.c</a>.</p>

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<a class="anchor" name="ga98b65673615683dbdaa1fc7ee4e4f2f"></a><!-- doxytag: member="digitalout.c::DigitalOut_SetActive" ref="ga98b65673615683dbdaa1fc7ee4e4f2f" args="(int index, int state)" -->
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<p>
Sets whether the specified Digital Out is active. 
<p>
This is automatically called, setting the channel active, the first time <a class="el" href="group___digital_out.html#gcd33bd552fe48b82df9f0be1c4985ccd" title="Turn a Digital Out on or off on the MAKE Application Board.">DigitalOut_SetValue()</a> is called.<br>
 However, the channel must be explicitly set to inactive in order for any other devices to access the I/O lines. <dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>index</em>&nbsp;</td><td>An integer specifying which Digital Out (0-7). </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>state</em>&nbsp;</td><td>An integer specifying the state - on (1) or off (0). </td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>Zero on success. </dd></dl>

<p>Definition at line <a class="el" href="digitalout_8c-source.html#l00103">103</a> of file <a class="el" href="digitalout_8c-source.html">digitalout.c</a>.</p>

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<p>
Turn a Digital Out on or off on the MAKE Application Board. 
<p>
<dl compact><dt><b>Parameters:</b></dt><dd>
  <table border="0" cellspacing="2" cellpadding="0">
    <tr><td valign="top"></td><td valign="top"><em>index</em>&nbsp;</td><td>An integer specifying which Digital Out (0-7). </td></tr>
    <tr><td valign="top"></td><td valign="top"><em>state</em>&nbsp;</td><td>An integer specifying the state - on (1) or off (0). </td></tr>
  </table>
</dl>
<dl class="return" compact><dt><b>Returns:</b></dt><dd>Zero on success. </dd></dl>

<p>Definition at line <a class="el" href="digitalout_8c-source.html#l00132">132</a> of file <a class="el" href="digitalout_8c-source.html">digitalout.c</a>.</p>

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  <p class="footer">The Make Controller Kit is an open source project maintained by <a href="http://www.makingthings.com">MakingThings</a>.<br />
    MakingThings code is released under the <a href="http://www.apache.org/licenses/LICENSE-2.0.html" target="_blank">Apache 2.0 license</a>.<br />
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		This document was last updated on 5 Dec 2007.
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